The driver yelled "oh does SHE take it in the ass?!" Followed by them both laughing hysterically.
I then opened the 12 pack of coke zero I just bought and launched a can at their car as hard as I could. It hit so hard it exploded and sounded like a gun shot and left a gigantic dent...the driver screamed "what the fuck?!!" And sped off like a pussy. Their faces were truly priceless. Hopefully they think twice about sexually harassing random women.
ETA: I conceal but I wasn't about to pull on two 17 year old douchebags while they were in their car, I wasn't scared or anything. They were 2 teenage guys thinking they were being hilarious.